CVE-2021-41789 Denial of service in n/a
A missing validation check in the WiFi driver allows a proximal attacker to cause a system crash, resulting in remote denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-41789?
CVE-2021-41789 is a medium-severity denial of service vulnerability in n/a, published on 4 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In wifi driver, there is a possible system crash due to a missing validation check. This could lead to remote denial of service from a proximal attacker with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: GN20190426015; Issue ID: GN20190426015.
Weakness: CWE-20
Which versions are affected by CVE-2021-41789?
It affects 2 products.
Products include Mediatek Mt7615 Firmware, Mediatek Mt7622 Firmware.
How do I fix CVE-2021-41789?
No fix has been published for CVE-2021-41789 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-41789 being exploited?
There is no known exploitation of CVE-2021-41789 in the wild and no public exploit code.
Sources
Also known as GHSA-q52m-g3r7-w437.